Identifying an art print from 1970's

I have a nice print from the 1970’s called “Mystic Island.” It is signed by what looks like “S. Nowa.” It depicts a fantasy-type island with a unicorn, four lionesses, among other things, all arranged symetrically, surrounded by blue ocean.

A Google and ebay search has revealed nothing, so I’m hoping for some help here. Even some leads to sites that might help me locate other copies of this print and/or get an idea as to its value.

Thanks!
Mark Werner